Camera bellows



Mar. 6, 1923.

F. G. NORMAN CAMERA BELLOWS Filed Jan. 20, 1920 2 sheets-sheet l a... l r|| 114| llwll .RMV 111V; 1|1|r Q Q a N\ im M\ Q ,S w v V Il l ||L.| Q.LWN I\ 4l T| ily 111|. r 1% wlw Il M w wm u /w \\w\ w L 1%/ fwv b wif R .Nus

Mar. 6, 1923. l u 1,447,955

F, G. NORMAN CAMERA BELLOWS Filed Jan. 20, 1920 2 sheets-sheet 2 Patented Mar. 6, 1923.

UNITED STATES FRED G. NORMAN, 0F DAVENPORT, IOWA.

CAMERA BELLOWS.

Application led January 20, 1920. Serial No. 352,685.

T0 all whom it maq/ concern Be it known that I. Fiano G. onMAN. a citizen of the United States` residing at Davenport, in the county of Scott. State of Iowa, have invented. a new and. useful Camera Bellows; and l do hereby declare the following to be a full. clear.y and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the saine.

The invention relates to bellows for cameras, stereoptieal machines and other places where a cylindrically shaped bellows is desired.

A. further object is to provide a sul'istantally cylindrically. shaped bellows formedA from a heavy piece of paper, leather or other material. `said piece of paper being provided with scored lines on opposite sides thereof and out of registration with each. other'but parallel. One side of the paper being provided. with a series of scored lines at right angles to the rst mentioned lines and a series of zig zag lines on one face of the paper, said scored lines allowing the paper when its longitudinal edges are secured together to be collapsed so as to form a bellows.

A further object is to form a bellows from a single piece of material, said material being so scored that when 'the edgesthereof. are brought together and secured so as to form a cylinder. the cylinder may be collapsed inwardly from its ends so as to form a series of circumferential outwardly and inwardly extending members, each member being formed from a series of sections and 4the adjacent ends of each section having an overlapping connection so that the sections will not buckle when being forced together.

With the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter' set forth, shown in the drawings, described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings Figure l is a view showing a sheet of mate` rial and series of scorings therein, said view shows the sheet laid out and from the side which becomes the inside of the bellows.

yFigure 2 is an end view of the cylinder which is formed when the longitudinal edges of the sheet are brought together and glued or otherwise secured.

Figure 3 is perspective view of a por tion of the bellows showing the formation thereof.

Figure 4 is a sectional view taken on line 4 4 of Figure 1.

Figure 5 is an end view of a portion of the scored sheet before the same is formed into a cylinder.

Referring to the drawings, the numeral l designates a sheet of heavy paper, imitation leather or other material. from which the bellows is to be formed and 2 the inner facel thereof which becomes the inner face of the bellows after the same is formed..r

The face 3 of the .sheet which becomes the outer face of the bellows when said bellows is formed. Face 2 of the sheet is provided with a `series of transversely disposed scorings 4, which scorings are in parallel relation to each other and forming bending points when the sheet is folded. By scoring the sheet on its inner face as at 4, it will be seen that when the sheet is formed into a cylinder with its longitudinal edges joined that the portions 5 will extend inwardly at their edges 6, and by providing the outer face 3 with a series of transversely disposed scorings 7 disposed between the seorings 4, the edges 8 of the portions 5 will, when the longitudinal edges of the sheet are secured together and the cylinder so formed crushed inwardly. extend outwardy, thereby forming a bellows. However, it has been found that it is necessary to allow the ends 9 to overlap as the longitudinal edges 10 are brought together and glued, and to accomplish this result the outer face 3 of the sheet is provided with a series of longitudinally disposed scorings lil, which scorings are in parallel relation to each other and to provide the inner face 2 with zig zag scored lines l2 extending longitudinally of the sheet ll and having their points of angle 13 alternately registering with the scoring/s 4 and 7 so as to form triangular shaped portions i4. Triangular shaped portions 14, when the cylinder is crushed inwardly, allowv of sufficient play as shown at 15, so that the portions 5 will not become buckled as the bellows is moved for shortening or extending its length.

From the above it will be seen that a bellows is provided formed from a single sheet of material, which material is scored on both sides thereof, so as to allow the inward and outward bending oli' the sheet when it is crushed inwardly after being` formed into a cylinder and that the sheet having been provided with longitudinal seorings on one side and Zig zag scorings on the other side thereof, will when the bellows is oollapsed allow the bellows to be collapsed or extended as desired. Although the bellows has been set :toi-th for us with camera, stereoptieon machines and the like, it is to be understood that the bellows is for general. application in any place where a bellows is necessary.

The invention having,` been set torth what is claimed as new and useful is A polygonal shaped bellows termed troni a single sheet of relatively thick iibrous material, said sheet being provided with a a plurality ot transversely disposed seorings on one side thereof and in parallel relation to each other, a plurality ot seorings on the other side of the sheet in parallel relation to each other and to the tirst mentioned seorings, a plurality of seorings at right angles to the last mentioned seorings, Zig

Zag seorings on the side ot the sheet having the first mentioned soorings, said zig zag seorings liavino' every other angling point in registration with the first mentioned scorings and with the right angled soorings on the other side ot' the `Sheet' and their intermediate angling points equidistant between the irst mentioned seorings and in registration with parallel scorings on the opposite side of the sheet, said angling points being spaced troni the right anguiarly disposed seorings, said `soorings when the longitudinal edges ot' the sheet are brought together and secured `allowing the cylinder so termed to be collapsed and the zig Zag seorings al'- lowing the bellows so toi-ined to be oontraeted or extended.

ln testimony whereof l have signed iny naine to this specification in the presene e of two subscribing witnesses.

FRED G. NORMAR Witnesses HARRY B. BETTY,

ELIZABETH BETTY. 

